Speaker



FIG. 1 is a perspective view of a speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a reference drawing thereof in a usage state.

The broken line showing on FIG. 8 is for illustrative purposes only andforms no part of the claimed design.

The ornamental design for a speaker, as shown and described.